_Schistosoma hæmatobium_ 641 CESTODES 644 General 644 _Dibothriocephalus latus_ 658 _Sparganum mansoni_ 659 _Dipylidium caninum_ (_Tænia cucumerina_) 659 _Hymenolepis nana_ 661 _Tænia solium_ 662 _Tænia saginata_ 667 NEMATODES 674 _Strongyloides stercoralis_ 674 _Dracunculus medinensis_ (Dracontiasis) 675 _Filaria bancrofti_ 676 _Loa loa_ 678 _Trichuris trichiura_ 678 _Trichinella spiralis_ 680 _Eustrongylus gigas_ 681 _Ancylostoma duodenale_ (Ancylostomiasis) 682 _Ascaris lumbricoides_ (Ascariasis) 687 _Oxyuris vermicularis_ (Oxyuriasis) 694 *Hirudinea* (Leeches) 699 *Arthropoda* 702 ARACHNOIDEA 702 _Leptus autumnalis_ (Grass, Harvest, or Gooseberry Mite) 702 _Kedani, Akaneesch_ (The Japanese River or Inundation Disease) 703 _Dermanyssus gallinæ_ (_avium_) 703 _Ixodes reduvius_ (_ricinus_ ) 704 _Sarcoptes scabiei_ (Scabies) 704 _Demodex folliculorum_ 708 _Demodex folliculorum canis_ 709 INSECTA 709 _Pediculus capitis_ (Head Louse) 709 _Pediculus vestimenti_ (Clothes Louse) 710 _Phthirius inguinalis_ (_Pediculus pubis_) (Crab Louse) 711 _Cimex_ (_Acanthia_) _lectularia_ (_Cimex lectularius_) (Bed Bug) 713 _Pulex irritans_ (Human Flea) 714 _Dermatophilus_ (_Sarcopsylla_) _penetrans_ (Sand Flea) 714 _Myiasis_ 715